UK Money: ISAs, Pensions, Stamp Duty and Bills — 2026-09-13
As the Autumn Budget approaches, the debate over the state pension triple lock has intensified, with the IFS warning it could add £20bn to annual costs by 2050. Meanwhile, HMRC has detailed new legal changes for ISA reforms taking effect in 2027, and Ofgem has confirmed a price cap rise for October.
UK Money: ISAs, Pensions, Stamp Duty and Bills — 2026-09-13
Top developments
Triple Lock under fire as IFS warns of £20bn cost
The Institute for Fiscal Studies (IFS) has warned that maintaining the state pension triple lock will add £20bn to annual costs by 2050, fueling calls from business groups to scrap the policy. The controversy comes just weeks before the Autumn Budget, with The Guardian reporting that arguments are raging over whether ministers should abandon a pledge popular with millions of retirees. While former MP John Redwood argues the policy is affordable, the Telegraph notes that no major party dares to scrap it due to political backlash.
HMRC details new ISA cash charge rules
HMRC has shared details of "imminent" legal changes required to implement the new tax charge on uninvested cash within Stocks and Shares ISAs, effective April 2027. This measure is designed to prevent savers from bypassing the reduced cash ISA allowance, which is set to fall from £20,000 to £12,000 for under-65s. The 22% charge on interest earned on such cash aims to close loopholes ahead of the full implementation of ISA reforms in the 2027/28 tax year.
Energy Price Cap rises to £1,723 in October
Ofgem has announced that the energy price cap will increase to £1,723 for a typical household starting 1 October 2026, up from the current cap of £1,663. This represents a significant jump for households paying by Direct Debit, who will see their typical annual bill rise during the winter months. Approximately 11 million households on fixed tariffs will remain unaffected by this immediate change, but they face higher rates upon renewal.
October money changes: DWP and Vinted rules
UK households face several new financial rules starting in October 2026, including changes to DWP powers and regulations affecting online marketplaces like Vinted. These updates coincide with the new energy price cap and are part of a broader set of cost-of-living measures. Chronicle Live highlights that these changes will impact how benefits are managed and how individuals earn income through side-hustles.
Local view
Polish-language media outlets serving the UK migrant community are focusing heavily on the potential tax increases following the Autumn Budget. bham.pl reports that Chancellor John Healey has not ruled out rises in Capital Gains Tax (CGT) and property taxes, causing concern among Polish residents about future wealth preservation. Additionally, polskiobserwator.uk notes that HMRC is automatically enrolling more taxpayers into the Making Tax Digital (MTD) system this September, a significant administrative change for self-employed migrants. Energy bills are also a key topic, with bham.pl highlighting campaigns to remove "hidden taxes" from energy bills that could save households up to £250 a year.
Context & numbers
- State Pension: The weekly rate rose to £241.30 in 2026, with the pension age moving to 67.
- Energy Cap: Current cap (July–Sept) is £1,663; New cap (Oct–Dec) is £1,723.
- ISA Allowance: Cash ISA limit drops to £12,000 for under-65s from April 2027; overall allowance remains £20,000.
- Mortgage Rates: Average mortgage rates have hovered around 6.82% recently due to inflation concerns affecting yields.
On the radar
- Autumn Budget Date: The next major fiscal event is scheduled for 28 October 2026, where further details on stamp duty reform and pension taxation are expected.
- First-Time Buyer ISA: Further details on the replacement for the Lifetime ISA are expected to be clarified in the upcoming budget, though existing LISA holders are currently protected.
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